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 TM 9-4120-425-14&P
EVAPORATOR COIL DIRECT SUPPORT MAINTENANCE REPLACEMENT - Continued
0077-00
CLEANING
WARNING
Clean parts in a well-ventilated area. Avoid inhalation of solvent fumes and
prolonged exposure of skin to cleaning solvent. Wash exposed skin thoroughly. Dry
cleaning solvent, P-D-680 Type III, which is used to clean parts, is potentially
dangerous to personnel and property. Avoid repeated and prolonged skin contact. Do
not use near open flame or excessive heat. Flash point of solvent is 100 F to 138 F
(38 C to 59 C).
Clean coil using cleaning solvent (Item 16, Table 1, WP 0121-00) and soft brush.
INSTALLATION
1.
Connect tubing to coil (3), distributor (6) and expansion valve (7) to form the evaporator coil and expansion valve
subassembly.
2.
Install sensor bulb (9) and insulation to suction line (8).
3.
Place the subassembly into the unit and braze at brazing joints (4) and (5). Before brazing joints, provide a flow of
dry nitrogen through refrigeration system to protect internal surfaces of the tubing and fittings. (See WP 0051-00.)
4.
Secure coil to housing with six screws (1).
5.
Install new filter-dryer. (See WP 0066-00.)
6.
Leak test system. (See WP 0052-00.)
7.
Evacuate system. (See WP 0053-00.)
8.
Charge system. (See WP 0054-00.)
9.
Install evaporator air discharge louver. (See WP 0020-00.)
10. Install mist eliminator. (See WP 0026-00.)
11. Install top covers. (See WP 0019-00.)
0077-00-3
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